Obnoxious Problem with SDXC Card - Card on Computer Works Fine, Phone Wants to Format - General Questions and Answers

Card is a Sandisk 128GB Ultra MicroSDXC A1 card.
Card is formatted exFAT.
Card can be mounted, opened, and read/write with no problems via my laptop when plugged directly (SD slot).
Android (LG G5, LineageOS 15.1) says card is corrupt, is trying to make me format. Card initially set up as "Portable Storage".
Took FOREVER to move music onto this card, as artists had to be moved one at a time or transfers would fail, so I'm trying to avoid formatting.
I've tried rebooting the phone, repairing the file system using TWRP Wipe command (fails with error code 1), and mounting with a clean eject via Windows 10 on my laptop using the SD card slot. Nothing has made an impact, stupid phone still won't allow me to use the card.
If anyone has any ideas why this is happening, or how I could potentially fix this without having to wipe the card, I would appreciate it. This thing has been a PITA since I got it, I thought it would be awesome having such expandable storage on my phone (I'm a weirdo who doesn't use streaming services) but I've had nothing but problems so far. I have to be careful with how I transfer files onto the card or the transfer will take an (appropriately) long time, act like it works, but then the file just won't be there. Now I've finally gotten the card loaded up, and after a routine phone reboot a few days ago, the Android OS is trying to say it's corrupt; This is also making me worry that this will continue being an issue in the future.

Running "chkdsk E: /r" on my laptop is revealing a couple minor corruptions inside the directory, and volume bitmap. It's hanging on verification/completing now.
Is it possible that I have a bad SD card? This thing has seriously done nothing but suck since I've been trying to use it.
Edit: Unless someone tells me otherwise, I'm pretty sure this is a bogus/defective SD card. I simply cannot believe that flash memory would perform this badly. I'm going to return this card (bit of a PITA since I ordered it online) and buy another one locally.

Related

Sprint PPC-6800 (HTC Mogul) Problems

hello everyone, i just got my HTC Mogul (Sprint PPC-6800) and i love the device, except for the memory card i have is corrupt and i cant format it. any file i put on there, program, music, anything gets corrupted and wont work. I cant delete the my documents folder that is the only file on there and is what i believe is causing the corruption, does anyone know how to fix this?
Try formatting it on your pc?
Like he said, you might have to use a media card reader on the pc side to format it.
I tried that and it doesnt work on the PC, it says Windows cannot format the device. Any other way to do it?
put it in a camera? do you have an adaptor?
Might be time to go back to the store
SD Card Failure on Sprint Mogul
I'm sorry you've run into the same problem I have.. Its the micro SD card that has failed. You may be able to get a little longer use from it doing what I did but ultimately you need a new micro SD card.
I got one of the cheap chinese MP4/MP5 players that use SD cards and used an SD card reader with my micro SD card in it..
If you don't use this your PC will refuse to have anything to do with your micro SD card.
I formatted the disc with the player and then used my laptop to format it again to FAT32 at least 16 sectors. This woke the micro SD card, it still has I/O errors and it misbehaves a lot but its at last usable and its 2GB can retain 800MB. It will hold until I get a new card...
The moral is to save your backups to your PC so you can buy a new card and restore to it..

Corrupt SD Card issues

Is anyone else having issues with their sd card corrupting? I have an 8gb class 6 transcend card and it has corrupted 3 times in the last month. I always unmount the card in windows before unplugging the phone. It seems to do it when I'm writing to the sd card from the phone.
The first time I noticed it was when I deleted a picture with built in photos app.
The next time was today when I made a nandroid backup before applying an update (theme). The nandroid backup finished and when I went to apply the update it came up with an error (I didn't reboot between the backup and applying the update). I reset the phone and the sd card was unavailable.
At one point I did have the card partitioned with the apps on one partition. When it corrupted I reflashed the phone back to 1.42 and left the apps on the phone. I went back to one partition and left it at that (fat32).
I don't know if I just have a bad card or something else is going on. I never had any problems with 1.41. However because it did it while doing a nandroid backup would that rule out the software version?
I would like to find a solution, as I don't trust the card anymore without backing it up frequently.
i've had it happen once (files names corrupted) but assumed it was down to the card as i had the same happen when it was in my N95, i've now bought a new card and i'll see how it goes.
When mine goes down, it seems like it kills the partition. When I open a disk manager I don't see a partition on the card anymore.
Hey axion,
Yea your card is pretty much dead... this also happened to me yesterday on my 4 gig card... yyour card will still work however reformatting or creating anymore partitions won't help bring it back.. for future update.zips or recovery boots upload your update files to your stock 1 gig card.. remember to always safely remove hardware with any card mounted to the to a computer..
YES - and not only have I had the same problems, it's with the same brand card! Transcend 4 GB Class 6.
My phone started having issues where I installed an application and it would act wonky, then if I tried to reboot it'd lock up into an infinite loop.
The last couple of times, I solved the loop by doing a fsck on the partition in GParted (booted into a GParted Live instance from a laptop using a USB stick). The problem reoccurs though, making me think there's something problematic with the card.
There's an app in the thread on the cheap 8 GB cards (of which I'm holding my recently received shipment . There's an app in that thread used to test write performance, but it does some crude error checking, and I had an issue when I did that test.
I'm going to do a partition clone and report back.
my dodgy card was 4GB Kingston, one interesting problem i had with it was video refused to play, i could read and write the file fine but android would refuse to play it and meridian video player would report the wrong pixel size, time and codec which had me confused all last weekend.
I'm also frequently having problems with my 8gb card (http://www.newegg.com/Product/Product.aspx?Item=N82E16820211341). Every few days I find myself firing up Ubuntu to fsck it and I always find errors. I often discover them when looking for a file on the phone (I usually do a find / | grep whatever and notice that I get "stale file handle" errors).
Should I get a newer/better card? I'm happy to pay more for a better one. I didn't know this brand, but it was the only class 6 I could find. If Sandisk made a faster card I'd get that, but I can only find a class 2. I have a 16gb Sandisk but it is only class 2 and therefore not good for apps, which is what I'm using the sdcard for.
If anyone can recommend a better one, I'll give it a try.
Does a 16gb class 8 exist yet? What about a 16gb class 6?
I just moved to the same card you have, mlevin - so I'll post back my experiences if I'm seeing anything.
I'm wondering if maybe moving the caches to SD isn't the greatest idea, since these devices aren't meant for continuous writes. If I have more issues, I might just move the caches back to the onboard memory.
giantcrazy said:
I just moved to the same card you have, mlevin - so I'll post back my experiences if I'm seeing anything.
I'm wondering if maybe moving the caches to SD isn't the greatest idea, since these devices aren't meant for continuous writes. If I have more issues, I might just move the caches back to the onboard memory.
Click to expand...
Click to collapse
Yeah, that worried me as well, so I moved my caches back to the main storage and only have app, app-private and data symlinked to the card.
If you are having problems after moving apps and data to your ext2 partition, you have to push the original init.rc and mountd.conf back onto the phone so you can wipe to card fully and restore it to the FAT32 file system.
I had a similar problem on my tmobile wing (variant of the Atlas which is a modified version of the Herald) running Windows Mobile 6 and Windows Mobile 6.1. I think it was also when I used the SD card as a place to store cache for PocketIE. Maybe that's the issue, using it as cache storage. (This is my theory, not something that has been confirmed.)
g1 sd card deletes itself
I am on my 4th sd card. I am not sure what is corrupting/deleting my data. I can copy over some music/video/pdfs/wtfevers and it'll stick around for awhile. Then BAM, music folder empty(had 1 gig of music in it). BAM, 1 of 3 video files corrupted. OH wait, now all 3 are gone. awesome. I keep a backup on my pc so I can copy it all back over once it goes south. I have the doodledroid drawing app on my phone and the folder will go corrupt - not allowing me to save an image until I delete the folder so it can reinitialize(create a non-f'ed up folder). Also, my picture thumbnails get f'ed so I have to delete that folder so the G1 can remake a new non-corrupted set. My PDFs disappeared about 3 days ago. Cards all formatted fat32. blah.
Frustrating.
I have root
kila-user 1.1 PLAT-RC33
Anyone else find a solution?
BTW, my sd cards were:
sandisk 2gb
sandisk 2gb
PNY 4gb (current)
Lexar 4gb
mlevin said:
I'm also frequently having problems with my 8gb card (http://www.newegg.com/Product/Product.aspx?Item=N82E16820211341). Every few days I find myself firing up Ubuntu to fsck it and I always find errors. I often discover them when looking for a file on the phone (I usually do a find / | grep whatever and notice that I get "stale file handle" errors).
Should I get a newer/better card? I'm happy to pay more for a better one. I didn't know this brand, but it was the only class 6 I could find. If Sandisk made a faster card I'd get that, but I can only find a class 2. I have a 16gb Sandisk but it is only class 2 and therefore not good for apps, which is what I'm using the sdcard for.
If anyone can recommend a better one, I'll give it a try.
Does a 16gb class 8 exist yet? What about a 16gb class 6?
Click to expand...
Click to collapse
mlevin: I have that card. It's been fine...until I believe the other day. I was running 5.01H w/ apps to sd and my battery had died so I charged it. Upon turning it on the android screen kept looping as though it wasn't mounting the card. Worse came to worse and I had to end up reformatting the card and starting from square 1. Now that I reformatted it, I'm getting "insufficent space" errors when trying to install paid apps even though I did everything right.
I'm wondering if it is the card.....

Corrupted MicroSD Card - Apps2SD

I have this problem that keeps repeating itself.
I have been using the latest BiffMod Rom for a few weeks, all has been fine until I moved some apps to the MicroSD card via the inbuilt application manager.
The phone works fine for a while and then one day, nothing. the phone doesnt want to boot or anything. After some investigating it turns out its the MicroSD card that is corrupt.
If remove it from the phone, the phone operates as expected, If I insert it, I either get freezing, or the safely remove SD card message. The card wont mount.
I have tried the card in a Windows PC and it will read the Fat32 but freezes after a while.
Now this is not the first time this has happened and the pattern is emerging that it seems to be when ever I move apps to the SD.
Has anyone else had similar problems, I have gone through 3 of the same card in about as many months, luckily I have a bunch of cards from work. But its super annoying.
completely The card ends up been completly useless.
winkerg1 said:
I have this problem that keeps repeating itself.
I have been using the latest BiffMod Rom for a few weeks, all has been fine until I moved some apps to the MicroSD card via the inbuilt application manager.
The phone works fine for a while and then one day, nothing. the phone doesnt want to boot or anything. After some investigating it turns out its the MicroSD card that is corrupt.
If remove it from the phone, the phone operates as expected, If I insert it, I either get freezing, or the safely remove SD card message. The card wont mount.
I have tried the card in a Windows PC and it will read the Fat32 but freezes after a while.
Now this is not the first time this has happened and the pattern is emerging that it seems to be when ever I move apps to the SD.
Has anyone else had similar problems, I have gone through 3 of the same card in about as many months, luckily I have a bunch of cards from work. But its super annoying.
completely The card ends up been completly useless.
Click to expand...
Click to collapse
1. Wrong section. Next time try Q&A
2. I for myself only killed 1 microsd 16gb with one of the first froyo roms and never experienced or heard sth similiar until now
3. try reformatting the card...
SD Card Fix
winkerg1 said:
I have this problem that keeps repeating itself.
I have been using the latest BiffMod Rom for a few weeks, all has been fine until I moved some apps to the MicroSD card via the inbuilt application manager.
The phone works fine for a while and then one day, nothing. the phone doesnt want to boot or anything. After some investigating it turns out its the MicroSD card that is corrupt.
If remove it from the phone, the phone operates as expected, If I insert it, I either get freezing, or the safely remove SD card message. The card wont mount.
I have tried the card in a Windows PC and it will read the Fat32 but freezes after a while.
Now this is not the first time this has happened and the pattern is emerging that it seems to be when ever I move apps to the SD.
Has anyone else had similar problems, I have gone through 3 of the same card in about as many months, luckily I have a bunch of cards from work. But its super annoying.
completely The card ends up been completly useless.
Click to expand...
Click to collapse
Well, for one, Biffmod moves apps2sd automatically, using scripts and when you do it manually, you are messing with the mod. So, thats where you messed up.
Secondly, I too messed up a 16GB Class10 SD card but, was able to fix it by reformatting it in ubuntu then again in Amon_RA recovery menu. I originally had it formatted 1024MB ext4/96MB swap...when I re-parted it, I had to change the sizes for it to work. Now, its 512MB ext4/32MB swap.
Third, a guy (MrBurrito) gave me this script file he made to try and fix the card. You copy it to your sd card, flash it in recovery, wait 10-20 seconds after it finishes and, then reboot. It didn't work for me but, I'll attach it, maybe it can work for you.

[Q] Cannot delete or add to SD card

A few days ago, I tried taking some pictures with my Droid Charge and the pics would not save. I tried in the stock camera app and in CameraZoom EX. CameraZoom gave me an error message "failed to save photo to SD car (error code=2). I figured I was out of space.
My Titanium Backup scheduled backup did not run the next day. So, I assumed I was out of space.
I connected the phone to my PC and deleted some pics and music. WHen I was in WIndows explorer, it said I had about 2 GB free after doing all of this.
When playing music today, I noticed files that I had deleted before still present on the phone. I thought this was weird. I went back and checked and all the stuff I thought I deleted was still there.
I searched on the CameraZoom EX error code 2. It directed to remove and reinsert the card and reboot. I tried that. I have tried unmounting and then mounting with no success either.
My phone seems to be working fine, but I cannot delete or add anything to the microSD card (the original that came with the phone). It does not matter if I use my WIndows 7 laptop, desktop, or various file managers on the phone itself.
ANy idea what is going on?
To me, it sounds like the SD card is going bad. Not a common occurrence but it can happen. You're lucky you can still read from it... I would suggest getting a new SD card (Verizon might even give you a new one free) and copying your data to it before sectors start going bad. By the way, how did you manage to full up 32 gb?
Or I could be blowing this out of proportion and it's just a matter of write protection on the card.
Sent from my SCH-I510 using xda premium
Another option is to copy everything off the SD card, format it, and try to write everything back. Sometimes a format can joggle a bugged card.
It is mostly music that I have on there. I am not sure how write protection would have gotten on the microSD card or how I would remove it. It does not have a physical togge like an SD card does.
I think I may have to try re-formatting. Ugh.
It is mostly music that I have on there. I am not sure how write protection would have gotten on the microSD card or how I would remove it. It does not have a physical togge like an SD card does.
I think I may have to try re-formatting. Ugh.
Corrupted SD card. Call VZW and be nice on the phone, explain the situation, hopefully they send you a new one.
Hmmm, this is interesting. I cannot even format the microSD card. I tried to do it through Windows Explorer. It looked like it worked. I then tried to copy files back on and it choked halfway through on a movie, I think.
Anyway, what was more interesting is that when I looked at the drive again, everything was back where it originally was. So, the re-formatting must not have actually worked.
I then tried to erase the SD through the options in Android. I unmounted. I then selected Erase SD card. After rebooting (to just be safe), the SD card still is untouched.
THis microSD card has become an impenetrable force. More realistically, it must have write-protection enabled somehow as that is the only thing I can think of.
The question is how do I find out if write protection is enabled and how to disable it? Any ideas are appreciated. Thanks.

God Mode MicroSD Card

I have a SanDisk 64GB MicroSD card that I have used for about 8 months without any issue. Recently the SD card would write data, then the data would disappear. This was extremely frustrating after trying to backup phone data to make a switch and realizing that, even though I verified the existence of the backed up data including opening specific files, that when I put it into a different phone, the data was gone. Everything that was there before this started happening won't go away. I have deleted everything on the card multiple times and it keeps coming back.
I can't get the card to format for the life of me. I run a format through cmd and the card still returns to life as it's old self with all the data that doesn't wipe still fully accessible and usable. Now the thing is I can't format through any program besides cmd. In cmd I get a notice before I format that the card needs to be forced to dismount ("Volume is in use by another process"). I think the card is perma-stuck mounted to my old phone. No matter what I do nothing succeeds and I'm really at a loss. There's no write protection switch on the card and I don't know what I need to do to fix the issue. I'd really like this card back and not have to burn it (I mean that literally) and spend $50 for a new one.
Any help would be greatly appreciated.

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